1 /* 2 * Copyright (C) 2015-2017 Netronome Systems, Inc. 3 * 4 * This software is dual licensed under the GNU General License Version 2, 5 * June 1991 as shown in the file COPYING in the top-level directory of this 6 * source tree or the BSD 2-Clause License provided below. You have the 7 * option to license this software under the complete terms of either license. 8 * 9 * The BSD 2-Clause License: 10 * 11 * Redistribution and use in source and binary forms, with or 12 * without modification, are permitted provided that the following 13 * conditions are met: 14 * 15 * 1. Redistributions of source code must retain the above 16 * copyright notice, this list of conditions and the following 17 * disclaimer. 18 * 19 * 2. Redistributions in binary form must reproduce the above 20 * copyright notice, this list of conditions and the following 21 * disclaimer in the documentation and/or other materials 22 * provided with the distribution. 23 * 24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 31 * SOFTWARE. 32 */ 33 34 /* 35 * nfp_net_ethtool.c 36 * Netronome network device driver: ethtool support 37 * Authors: Jakub Kicinski <jakub.kicinski@netronome.com> 38 * Jason McMullan <jason.mcmullan@netronome.com> 39 * Rolf Neugebauer <rolf.neugebauer@netronome.com> 40 * Brad Petrus <brad.petrus@netronome.com> 41 */ 42 43 #include <linux/bitfield.h> 44 #include <linux/kernel.h> 45 #include <linux/netdevice.h> 46 #include <linux/etherdevice.h> 47 #include <linux/interrupt.h> 48 #include <linux/pci.h> 49 #include <linux/ethtool.h> 50 51 #include "nfpcore/nfp.h" 52 #include "nfpcore/nfp_nsp.h" 53 #include "nfp_app.h" 54 #include "nfp_net_ctrl.h" 55 #include "nfp_net.h" 56 #include "nfp_port.h" 57 58 enum nfp_dump_diag { 59 NFP_DUMP_NSP_DIAG = 0, 60 }; 61 62 struct nfp_et_stat { 63 char name[ETH_GSTRING_LEN]; 64 int off; 65 }; 66 67 static const struct nfp_et_stat nfp_net_et_stats[] = { 68 /* Stats from the device */ 69 { "dev_rx_discards", NFP_NET_CFG_STATS_RX_DISCARDS }, 70 { "dev_rx_errors", NFP_NET_CFG_STATS_RX_ERRORS }, 71 { "dev_rx_bytes", NFP_NET_CFG_STATS_RX_OCTETS }, 72 { "dev_rx_uc_bytes", NFP_NET_CFG_STATS_RX_UC_OCTETS }, 73 { "dev_rx_mc_bytes", NFP_NET_CFG_STATS_RX_MC_OCTETS }, 74 { "dev_rx_bc_bytes", NFP_NET_CFG_STATS_RX_BC_OCTETS }, 75 { "dev_rx_pkts", NFP_NET_CFG_STATS_RX_FRAMES }, 76 { "dev_rx_mc_pkts", NFP_NET_CFG_STATS_RX_MC_FRAMES }, 77 { "dev_rx_bc_pkts", NFP_NET_CFG_STATS_RX_BC_FRAMES }, 78 79 { "dev_tx_discards", NFP_NET_CFG_STATS_TX_DISCARDS }, 80 { "dev_tx_errors", NFP_NET_CFG_STATS_TX_ERRORS }, 81 { "dev_tx_bytes", NFP_NET_CFG_STATS_TX_OCTETS }, 82 { "dev_tx_uc_bytes", NFP_NET_CFG_STATS_TX_UC_OCTETS }, 83 { "dev_tx_mc_bytes", NFP_NET_CFG_STATS_TX_MC_OCTETS }, 84 { "dev_tx_bc_bytes", NFP_NET_CFG_STATS_TX_BC_OCTETS }, 85 { "dev_tx_pkts", NFP_NET_CFG_STATS_TX_FRAMES }, 86 { "dev_tx_mc_pkts", NFP_NET_CFG_STATS_TX_MC_FRAMES }, 87 { "dev_tx_bc_pkts", NFP_NET_CFG_STATS_TX_BC_FRAMES }, 88 89 { "bpf_pass_pkts", NFP_NET_CFG_STATS_APP0_FRAMES }, 90 { "bpf_pass_bytes", NFP_NET_CFG_STATS_APP0_BYTES }, 91 /* see comments in outro functions in nfp_bpf_jit.c to find out 92 * how different BPF modes use app-specific counters 93 */ 94 { "bpf_app1_pkts", NFP_NET_CFG_STATS_APP1_FRAMES }, 95 { "bpf_app1_bytes", NFP_NET_CFG_STATS_APP1_BYTES }, 96 { "bpf_app2_pkts", NFP_NET_CFG_STATS_APP2_FRAMES }, 97 { "bpf_app2_bytes", NFP_NET_CFG_STATS_APP2_BYTES }, 98 { "bpf_app3_pkts", NFP_NET_CFG_STATS_APP3_FRAMES }, 99 { "bpf_app3_bytes", NFP_NET_CFG_STATS_APP3_BYTES }, 100 }; 101 102 static const struct nfp_et_stat nfp_mac_et_stats[] = { 103 { "rx_octets", NFP_MAC_STATS_RX_IN_OCTETS, }, 104 { "rx_frame_too_long_errors", 105 NFP_MAC_STATS_RX_FRAME_TOO_LONG_ERRORS, }, 106 { "rx_range_length_errors", NFP_MAC_STATS_RX_RANGE_LENGTH_ERRORS, }, 107 { "rx_vlan_reveive_ok", NFP_MAC_STATS_RX_VLAN_REVEIVE_OK, }, 108 { "rx_errors", NFP_MAC_STATS_RX_IN_ERRORS, }, 109 { "rx_broadcast_pkts", NFP_MAC_STATS_RX_IN_BROADCAST_PKTS, }, 110 { "rx_drop_events", NFP_MAC_STATS_RX_DROP_EVENTS, }, 111 { "rx_alignment_errors", NFP_MAC_STATS_RX_ALIGNMENT_ERRORS, }, 112 { "rx_pause_mac_ctrl_frames", 113 NFP_MAC_STATS_RX_PAUSE_MAC_CTRL_FRAMES, }, 114 { "rx_frames_received_ok", NFP_MAC_STATS_RX_FRAMES_RECEIVED_OK, }, 115 { "rx_frame_check_sequence_errors", 116 NFP_MAC_STATS_RX_FRAME_CHECK_SEQUENCE_ERRORS, }, 117 { "rx_unicast_pkts", NFP_MAC_STATS_RX_UNICAST_PKTS, }, 118 { "rx_multicast_pkts", NFP_MAC_STATS_RX_MULTICAST_PKTS, }, 119 { "rx_pkts", NFP_MAC_STATS_RX_PKTS, }, 120 { "rx_undersize_pkts", NFP_MAC_STATS_RX_UNDERSIZE_PKTS, }, 121 { "rx_pkts_64_octets", NFP_MAC_STATS_RX_PKTS_64_OCTETS, }, 122 { "rx_pkts_65_to_127_octets", 123 NFP_MAC_STATS_RX_PKTS_65_TO_127_OCTETS, }, 124 { "rx_pkts_128_to_255_octets", 125 NFP_MAC_STATS_RX_PKTS_128_TO_255_OCTETS, }, 126 { "rx_pkts_256_to_511_octets", 127 NFP_MAC_STATS_RX_PKTS_256_TO_511_OCTETS, }, 128 { "rx_pkts_512_to_1023_octets", 129 NFP_MAC_STATS_RX_PKTS_512_TO_1023_OCTETS, }, 130 { "rx_pkts_1024_to_1518_octets", 131 NFP_MAC_STATS_RX_PKTS_1024_TO_1518_OCTETS, }, 132 { "rx_pkts_1519_to_max_octets", 133 NFP_MAC_STATS_RX_PKTS_1519_TO_MAX_OCTETS, }, 134 { "rx_jabbers", NFP_MAC_STATS_RX_JABBERS, }, 135 { "rx_fragments", NFP_MAC_STATS_RX_FRAGMENTS, }, 136 { "rx_oversize_pkts", NFP_MAC_STATS_RX_OVERSIZE_PKTS, }, 137 { "rx_pause_frames_class0", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS0, }, 138 { "rx_pause_frames_class1", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS1, }, 139 { "rx_pause_frames_class2", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS2, }, 140 { "rx_pause_frames_class3", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS3, }, 141 { "rx_pause_frames_class4", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS4, }, 142 { "rx_pause_frames_class5", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS5, }, 143 { "rx_pause_frames_class6", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS6, }, 144 { "rx_pause_frames_class7", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS7, }, 145 { "rx_mac_ctrl_frames_received", 146 NFP_MAC_STATS_RX_MAC_CTRL_FRAMES_RECEIVED, }, 147 { "rx_mac_head_drop", NFP_MAC_STATS_RX_MAC_HEAD_DROP, }, 148 { "tx_queue_drop", NFP_MAC_STATS_TX_QUEUE_DROP, }, 149 { "tx_octets", NFP_MAC_STATS_TX_OUT_OCTETS, }, 150 { "tx_vlan_transmitted_ok", NFP_MAC_STATS_TX_VLAN_TRANSMITTED_OK, }, 151 { "tx_errors", NFP_MAC_STATS_TX_OUT_ERRORS, }, 152 { "tx_broadcast_pkts", NFP_MAC_STATS_TX_BROADCAST_PKTS, }, 153 { "tx_pause_mac_ctrl_frames", 154 NFP_MAC_STATS_TX_PAUSE_MAC_CTRL_FRAMES, }, 155 { "tx_frames_transmitted_ok", 156 NFP_MAC_STATS_TX_FRAMES_TRANSMITTED_OK, }, 157 { "tx_unicast_pkts", NFP_MAC_STATS_TX_UNICAST_PKTS, }, 158 { "tx_multicast_pkts", NFP_MAC_STATS_TX_MULTICAST_PKTS, }, 159 { "tx_pkts_64_octets", NFP_MAC_STATS_TX_PKTS_64_OCTETS, }, 160 { "tx_pkts_65_to_127_octets", 161 NFP_MAC_STATS_TX_PKTS_65_TO_127_OCTETS, }, 162 { "tx_pkts_128_to_255_octets", 163 NFP_MAC_STATS_TX_PKTS_128_TO_255_OCTETS, }, 164 { "tx_pkts_256_to_511_octets", 165 NFP_MAC_STATS_TX_PKTS_256_TO_511_OCTETS, }, 166 { "tx_pkts_512_to_1023_octets", 167 NFP_MAC_STATS_TX_PKTS_512_TO_1023_OCTETS, }, 168 { "tx_pkts_1024_to_1518_octets", 169 NFP_MAC_STATS_TX_PKTS_1024_TO_1518_OCTETS, }, 170 { "tx_pkts_1519_to_max_octets", 171 NFP_MAC_STATS_TX_PKTS_1519_TO_MAX_OCTETS, }, 172 { "tx_pause_frames_class0", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS0, }, 173 { "tx_pause_frames_class1", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS1, }, 174 { "tx_pause_frames_class2", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS2, }, 175 { "tx_pause_frames_class3", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS3, }, 176 { "tx_pause_frames_class4", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS4, }, 177 { "tx_pause_frames_class5", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS5, }, 178 { "tx_pause_frames_class6", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS6, }, 179 { "tx_pause_frames_class7", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS7, }, 180 }; 181 182 #define NN_ET_GLOBAL_STATS_LEN ARRAY_SIZE(nfp_net_et_stats) 183 #define NN_ET_SWITCH_STATS_LEN 9 184 #define NN_ET_RVEC_GATHER_STATS 7 185 186 static void nfp_net_get_nspinfo(struct nfp_app *app, char *version) 187 { 188 struct nfp_nsp *nsp; 189 190 if (!app) 191 return; 192 193 nsp = nfp_nsp_open(app->cpp); 194 if (IS_ERR(nsp)) 195 return; 196 197 snprintf(version, ETHTOOL_FWVERS_LEN, "%hu.%hu", 198 nfp_nsp_get_abi_ver_major(nsp), 199 nfp_nsp_get_abi_ver_minor(nsp)); 200 201 nfp_nsp_close(nsp); 202 } 203 204 static void 205 nfp_get_drvinfo(struct nfp_app *app, struct pci_dev *pdev, 206 const char *vnic_version, struct ethtool_drvinfo *drvinfo) 207 { 208 char nsp_version[ETHTOOL_FWVERS_LEN] = {}; 209 210 strlcpy(drvinfo->driver, pdev->driver->name, sizeof(drvinfo->driver)); 211 strlcpy(drvinfo->version, nfp_driver_version, sizeof(drvinfo->version)); 212 213 nfp_net_get_nspinfo(app, nsp_version); 214 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), 215 "%s %s %s %s", vnic_version, nsp_version, 216 nfp_app_mip_name(app), nfp_app_name(app)); 217 } 218 219 static void 220 nfp_net_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo) 221 { 222 char vnic_version[ETHTOOL_FWVERS_LEN] = {}; 223 struct nfp_net *nn = netdev_priv(netdev); 224 225 snprintf(vnic_version, sizeof(vnic_version), "%d.%d.%d.%d", 226 nn->fw_ver.resv, nn->fw_ver.class, 227 nn->fw_ver.major, nn->fw_ver.minor); 228 strlcpy(drvinfo->bus_info, pci_name(nn->pdev), 229 sizeof(drvinfo->bus_info)); 230 231 nfp_get_drvinfo(nn->app, nn->pdev, vnic_version, drvinfo); 232 } 233 234 static void 235 nfp_app_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo) 236 { 237 struct nfp_app *app; 238 239 app = nfp_app_from_netdev(netdev); 240 if (!app) 241 return; 242 243 nfp_get_drvinfo(app, app->pdev, "*", drvinfo); 244 } 245 246 /** 247 * nfp_net_get_link_ksettings - Get Link Speed settings 248 * @netdev: network interface device structure 249 * @cmd: ethtool command 250 * 251 * Reports speed settings based on info in the BAR provided by the fw. 252 */ 253 static int 254 nfp_net_get_link_ksettings(struct net_device *netdev, 255 struct ethtool_link_ksettings *cmd) 256 { 257 static const u32 ls_to_ethtool[] = { 258 [NFP_NET_CFG_STS_LINK_RATE_UNSUPPORTED] = 0, 259 [NFP_NET_CFG_STS_LINK_RATE_UNKNOWN] = SPEED_UNKNOWN, 260 [NFP_NET_CFG_STS_LINK_RATE_1G] = SPEED_1000, 261 [NFP_NET_CFG_STS_LINK_RATE_10G] = SPEED_10000, 262 [NFP_NET_CFG_STS_LINK_RATE_25G] = SPEED_25000, 263 [NFP_NET_CFG_STS_LINK_RATE_40G] = SPEED_40000, 264 [NFP_NET_CFG_STS_LINK_RATE_50G] = SPEED_50000, 265 [NFP_NET_CFG_STS_LINK_RATE_100G] = SPEED_100000, 266 }; 267 struct nfp_eth_table_port *eth_port; 268 struct nfp_port *port; 269 struct nfp_net *nn; 270 u32 sts, ls; 271 272 /* Init to unknowns */ 273 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); 274 cmd->base.port = PORT_OTHER; 275 cmd->base.speed = SPEED_UNKNOWN; 276 cmd->base.duplex = DUPLEX_UNKNOWN; 277 278 port = nfp_port_from_netdev(netdev); 279 eth_port = nfp_port_get_eth_port(port); 280 if (eth_port) 281 cmd->base.autoneg = eth_port->aneg != NFP_ANEG_DISABLED ? 282 AUTONEG_ENABLE : AUTONEG_DISABLE; 283 284 if (!netif_carrier_ok(netdev)) 285 return 0; 286 287 /* Use link speed from ETH table if available, otherwise try the BAR */ 288 if (eth_port) { 289 cmd->base.port = eth_port->port_type; 290 cmd->base.speed = eth_port->speed; 291 cmd->base.duplex = DUPLEX_FULL; 292 return 0; 293 } 294 295 if (!nfp_netdev_is_nfp_net(netdev)) 296 return -EOPNOTSUPP; 297 nn = netdev_priv(netdev); 298 299 sts = nn_readl(nn, NFP_NET_CFG_STS); 300 301 ls = FIELD_GET(NFP_NET_CFG_STS_LINK_RATE, sts); 302 if (ls == NFP_NET_CFG_STS_LINK_RATE_UNSUPPORTED) 303 return -EOPNOTSUPP; 304 305 if (ls == NFP_NET_CFG_STS_LINK_RATE_UNKNOWN || 306 ls >= ARRAY_SIZE(ls_to_ethtool)) 307 return 0; 308 309 cmd->base.speed = ls_to_ethtool[sts]; 310 cmd->base.duplex = DUPLEX_FULL; 311 312 return 0; 313 } 314 315 static int 316 nfp_net_set_link_ksettings(struct net_device *netdev, 317 const struct ethtool_link_ksettings *cmd) 318 { 319 struct nfp_eth_table_port *eth_port; 320 struct nfp_port *port; 321 struct nfp_nsp *nsp; 322 int err; 323 324 port = nfp_port_from_netdev(netdev); 325 eth_port = __nfp_port_get_eth_port(port); 326 if (!eth_port) 327 return -EOPNOTSUPP; 328 329 if (netif_running(netdev)) { 330 netdev_warn(netdev, "Changing settings not allowed on an active interface. It may cause the port to be disabled until reboot.\n"); 331 return -EBUSY; 332 } 333 334 nsp = nfp_eth_config_start(port->app->cpp, eth_port->index); 335 if (IS_ERR(nsp)) 336 return PTR_ERR(nsp); 337 338 err = __nfp_eth_set_aneg(nsp, cmd->base.autoneg == AUTONEG_ENABLE ? 339 NFP_ANEG_AUTO : NFP_ANEG_DISABLED); 340 if (err) 341 goto err_bad_set; 342 if (cmd->base.speed != SPEED_UNKNOWN) { 343 u32 speed = cmd->base.speed / eth_port->lanes; 344 345 err = __nfp_eth_set_speed(nsp, speed); 346 if (err) 347 goto err_bad_set; 348 } 349 350 err = nfp_eth_config_commit_end(nsp); 351 if (err > 0) 352 return 0; /* no change */ 353 354 nfp_net_refresh_port_table(port); 355 356 return err; 357 358 err_bad_set: 359 nfp_eth_config_cleanup_end(nsp); 360 return err; 361 } 362 363 static void nfp_net_get_ringparam(struct net_device *netdev, 364 struct ethtool_ringparam *ring) 365 { 366 struct nfp_net *nn = netdev_priv(netdev); 367 368 ring->rx_max_pending = NFP_NET_MAX_RX_DESCS; 369 ring->tx_max_pending = NFP_NET_MAX_TX_DESCS; 370 ring->rx_pending = nn->dp.rxd_cnt; 371 ring->tx_pending = nn->dp.txd_cnt; 372 } 373 374 static int nfp_net_set_ring_size(struct nfp_net *nn, u32 rxd_cnt, u32 txd_cnt) 375 { 376 struct nfp_net_dp *dp; 377 378 dp = nfp_net_clone_dp(nn); 379 if (!dp) 380 return -ENOMEM; 381 382 dp->rxd_cnt = rxd_cnt; 383 dp->txd_cnt = txd_cnt; 384 385 return nfp_net_ring_reconfig(nn, dp, NULL); 386 } 387 388 static int nfp_net_set_ringparam(struct net_device *netdev, 389 struct ethtool_ringparam *ring) 390 { 391 struct nfp_net *nn = netdev_priv(netdev); 392 u32 rxd_cnt, txd_cnt; 393 394 /* We don't have separate queues/rings for small/large frames. */ 395 if (ring->rx_mini_pending || ring->rx_jumbo_pending) 396 return -EINVAL; 397 398 /* Round up to supported values */ 399 rxd_cnt = roundup_pow_of_two(ring->rx_pending); 400 txd_cnt = roundup_pow_of_two(ring->tx_pending); 401 402 if (rxd_cnt < NFP_NET_MIN_RX_DESCS || rxd_cnt > NFP_NET_MAX_RX_DESCS || 403 txd_cnt < NFP_NET_MIN_TX_DESCS || txd_cnt > NFP_NET_MAX_TX_DESCS) 404 return -EINVAL; 405 406 if (nn->dp.rxd_cnt == rxd_cnt && nn->dp.txd_cnt == txd_cnt) 407 return 0; 408 409 nn_dbg(nn, "Change ring size: RxQ %u->%u, TxQ %u->%u\n", 410 nn->dp.rxd_cnt, rxd_cnt, nn->dp.txd_cnt, txd_cnt); 411 412 return nfp_net_set_ring_size(nn, rxd_cnt, txd_cnt); 413 } 414 415 static __printf(2, 3) u8 *nfp_pr_et(u8 *data, const char *fmt, ...) 416 { 417 va_list args; 418 419 va_start(args, fmt); 420 vsnprintf(data, ETH_GSTRING_LEN, fmt, args); 421 va_end(args); 422 423 return data + ETH_GSTRING_LEN; 424 } 425 426 static unsigned int nfp_vnic_get_sw_stats_count(struct net_device *netdev) 427 { 428 struct nfp_net *nn = netdev_priv(netdev); 429 430 return NN_ET_RVEC_GATHER_STATS + nn->dp.num_r_vecs * 3; 431 } 432 433 static u8 *nfp_vnic_get_sw_stats_strings(struct net_device *netdev, u8 *data) 434 { 435 struct nfp_net *nn = netdev_priv(netdev); 436 int i; 437 438 for (i = 0; i < nn->dp.num_r_vecs; i++) { 439 data = nfp_pr_et(data, "rvec_%u_rx_pkts", i); 440 data = nfp_pr_et(data, "rvec_%u_tx_pkts", i); 441 data = nfp_pr_et(data, "rvec_%u_tx_busy", i); 442 } 443 444 data = nfp_pr_et(data, "hw_rx_csum_ok"); 445 data = nfp_pr_et(data, "hw_rx_csum_inner_ok"); 446 data = nfp_pr_et(data, "hw_rx_csum_err"); 447 data = nfp_pr_et(data, "hw_tx_csum"); 448 data = nfp_pr_et(data, "hw_tx_inner_csum"); 449 data = nfp_pr_et(data, "tx_gather"); 450 data = nfp_pr_et(data, "tx_lso"); 451 452 return data; 453 } 454 455 static u64 *nfp_vnic_get_sw_stats(struct net_device *netdev, u64 *data) 456 { 457 u64 gathered_stats[NN_ET_RVEC_GATHER_STATS] = {}; 458 struct nfp_net *nn = netdev_priv(netdev); 459 u64 tmp[NN_ET_RVEC_GATHER_STATS]; 460 unsigned int i, j; 461 462 for (i = 0; i < nn->dp.num_r_vecs; i++) { 463 unsigned int start; 464 465 do { 466 start = u64_stats_fetch_begin(&nn->r_vecs[i].rx_sync); 467 *data++ = nn->r_vecs[i].rx_pkts; 468 tmp[0] = nn->r_vecs[i].hw_csum_rx_ok; 469 tmp[1] = nn->r_vecs[i].hw_csum_rx_inner_ok; 470 tmp[2] = nn->r_vecs[i].hw_csum_rx_error; 471 } while (u64_stats_fetch_retry(&nn->r_vecs[i].rx_sync, start)); 472 473 do { 474 start = u64_stats_fetch_begin(&nn->r_vecs[i].tx_sync); 475 *data++ = nn->r_vecs[i].tx_pkts; 476 *data++ = nn->r_vecs[i].tx_busy; 477 tmp[3] = nn->r_vecs[i].hw_csum_tx; 478 tmp[4] = nn->r_vecs[i].hw_csum_tx_inner; 479 tmp[5] = nn->r_vecs[i].tx_gather; 480 tmp[6] = nn->r_vecs[i].tx_lso; 481 } while (u64_stats_fetch_retry(&nn->r_vecs[i].tx_sync, start)); 482 483 for (j = 0; j < NN_ET_RVEC_GATHER_STATS; j++) 484 gathered_stats[j] += tmp[j]; 485 } 486 487 for (j = 0; j < NN_ET_RVEC_GATHER_STATS; j++) 488 *data++ = gathered_stats[j]; 489 490 return data; 491 } 492 493 static unsigned int 494 nfp_vnic_get_hw_stats_count(unsigned int rx_rings, unsigned int tx_rings) 495 { 496 return NN_ET_GLOBAL_STATS_LEN + (rx_rings + tx_rings) * 2; 497 } 498 499 static u8 * 500 nfp_vnic_get_hw_stats_strings(u8 *data, unsigned int rx_rings, 501 unsigned int tx_rings, bool repr) 502 { 503 int swap_off, i; 504 505 BUILD_BUG_ON(NN_ET_GLOBAL_STATS_LEN < NN_ET_SWITCH_STATS_LEN * 2); 506 /* If repr is true first add SWITCH_STATS_LEN and then subtract it 507 * effectively swapping the RX and TX statistics (giving us the RX 508 * and TX from perspective of the switch). 509 */ 510 swap_off = repr * NN_ET_SWITCH_STATS_LEN; 511 512 for (i = 0; i < NN_ET_SWITCH_STATS_LEN; i++) 513 data = nfp_pr_et(data, nfp_net_et_stats[i + swap_off].name); 514 515 for (i = NN_ET_SWITCH_STATS_LEN; i < NN_ET_SWITCH_STATS_LEN * 2; i++) 516 data = nfp_pr_et(data, nfp_net_et_stats[i - swap_off].name); 517 518 for (i = NN_ET_SWITCH_STATS_LEN * 2; i < NN_ET_GLOBAL_STATS_LEN; i++) 519 data = nfp_pr_et(data, nfp_net_et_stats[i].name); 520 521 for (i = 0; i < tx_rings; i++) { 522 data = nfp_pr_et(data, "txq_%u_pkts", i); 523 data = nfp_pr_et(data, "txq_%u_bytes", i); 524 } 525 526 for (i = 0; i < rx_rings; i++) { 527 data = nfp_pr_et(data, "rxq_%u_pkts", i); 528 data = nfp_pr_et(data, "rxq_%u_bytes", i); 529 } 530 531 return data; 532 } 533 534 static u64 * 535 nfp_vnic_get_hw_stats(u64 *data, u8 __iomem *mem, 536 unsigned int rx_rings, unsigned int tx_rings) 537 { 538 unsigned int i; 539 540 for (i = 0; i < NN_ET_GLOBAL_STATS_LEN; i++) 541 *data++ = readq(mem + nfp_net_et_stats[i].off); 542 543 for (i = 0; i < tx_rings; i++) { 544 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i)); 545 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i) + 8); 546 } 547 548 for (i = 0; i < rx_rings; i++) { 549 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i)); 550 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i) + 8); 551 } 552 553 return data; 554 } 555 556 static unsigned int nfp_mac_get_stats_count(struct net_device *netdev) 557 { 558 struct nfp_port *port; 559 560 port = nfp_port_from_netdev(netdev); 561 if (!__nfp_port_get_eth_port(port) || !port->eth_stats) 562 return 0; 563 564 return ARRAY_SIZE(nfp_mac_et_stats); 565 } 566 567 static u8 *nfp_mac_get_stats_strings(struct net_device *netdev, u8 *data) 568 { 569 struct nfp_port *port; 570 unsigned int i; 571 572 port = nfp_port_from_netdev(netdev); 573 if (!__nfp_port_get_eth_port(port) || !port->eth_stats) 574 return data; 575 576 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++) 577 data = nfp_pr_et(data, "mac.%s", nfp_mac_et_stats[i].name); 578 579 return data; 580 } 581 582 static u64 *nfp_mac_get_stats(struct net_device *netdev, u64 *data) 583 { 584 struct nfp_port *port; 585 unsigned int i; 586 587 port = nfp_port_from_netdev(netdev); 588 if (!__nfp_port_get_eth_port(port) || !port->eth_stats) 589 return data; 590 591 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++) 592 *data++ = readq(port->eth_stats + nfp_mac_et_stats[i].off); 593 594 return data; 595 } 596 597 static void nfp_net_get_strings(struct net_device *netdev, 598 u32 stringset, u8 *data) 599 { 600 struct nfp_net *nn = netdev_priv(netdev); 601 602 switch (stringset) { 603 case ETH_SS_STATS: 604 data = nfp_vnic_get_sw_stats_strings(netdev, data); 605 data = nfp_vnic_get_hw_stats_strings(data, nn->dp.num_rx_rings, 606 nn->dp.num_tx_rings, 607 false); 608 data = nfp_mac_get_stats_strings(netdev, data); 609 break; 610 } 611 } 612 613 static void 614 nfp_net_get_stats(struct net_device *netdev, struct ethtool_stats *stats, 615 u64 *data) 616 { 617 struct nfp_net *nn = netdev_priv(netdev); 618 619 data = nfp_vnic_get_sw_stats(netdev, data); 620 data = nfp_vnic_get_hw_stats(data, nn->dp.ctrl_bar, 621 nn->dp.num_rx_rings, nn->dp.num_tx_rings); 622 data = nfp_mac_get_stats(netdev, data); 623 } 624 625 static int nfp_net_get_sset_count(struct net_device *netdev, int sset) 626 { 627 struct nfp_net *nn = netdev_priv(netdev); 628 629 switch (sset) { 630 case ETH_SS_STATS: 631 return nfp_vnic_get_sw_stats_count(netdev) + 632 nfp_vnic_get_hw_stats_count(nn->dp.num_rx_rings, 633 nn->dp.num_tx_rings) + 634 nfp_mac_get_stats_count(netdev); 635 default: 636 return -EOPNOTSUPP; 637 } 638 } 639 640 static void nfp_port_get_strings(struct net_device *netdev, 641 u32 stringset, u8 *data) 642 { 643 struct nfp_port *port = nfp_port_from_netdev(netdev); 644 645 switch (stringset) { 646 case ETH_SS_STATS: 647 if (nfp_port_is_vnic(port)) 648 data = nfp_vnic_get_hw_stats_strings(data, 0, 0, true); 649 else 650 data = nfp_mac_get_stats_strings(netdev, data); 651 break; 652 } 653 } 654 655 static void 656 nfp_port_get_stats(struct net_device *netdev, struct ethtool_stats *stats, 657 u64 *data) 658 { 659 struct nfp_port *port = nfp_port_from_netdev(netdev); 660 661 if (nfp_port_is_vnic(port)) 662 data = nfp_vnic_get_hw_stats(data, port->vnic, 0, 0); 663 else 664 data = nfp_mac_get_stats(netdev, data); 665 } 666 667 static int nfp_port_get_sset_count(struct net_device *netdev, int sset) 668 { 669 struct nfp_port *port = nfp_port_from_netdev(netdev); 670 unsigned int count; 671 672 switch (sset) { 673 case ETH_SS_STATS: 674 if (nfp_port_is_vnic(port)) 675 count = nfp_vnic_get_hw_stats_count(0, 0); 676 else 677 count = nfp_mac_get_stats_count(netdev); 678 return count; 679 default: 680 return -EOPNOTSUPP; 681 } 682 } 683 684 /* RX network flow classification (RSS, filters, etc) 685 */ 686 static u32 ethtool_flow_to_nfp_flag(u32 flow_type) 687 { 688 static const u32 xlate_ethtool_to_nfp[IPV6_FLOW + 1] = { 689 [TCP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_TCP, 690 [TCP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_TCP, 691 [UDP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_UDP, 692 [UDP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_UDP, 693 [IPV4_FLOW] = NFP_NET_CFG_RSS_IPV4, 694 [IPV6_FLOW] = NFP_NET_CFG_RSS_IPV6, 695 }; 696 697 if (flow_type >= ARRAY_SIZE(xlate_ethtool_to_nfp)) 698 return 0; 699 700 return xlate_ethtool_to_nfp[flow_type]; 701 } 702 703 static int nfp_net_get_rss_hash_opts(struct nfp_net *nn, 704 struct ethtool_rxnfc *cmd) 705 { 706 u32 nfp_rss_flag; 707 708 cmd->data = 0; 709 710 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 711 return -EOPNOTSUPP; 712 713 nfp_rss_flag = ethtool_flow_to_nfp_flag(cmd->flow_type); 714 if (!nfp_rss_flag) 715 return -EINVAL; 716 717 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 718 if (nn->rss_cfg & nfp_rss_flag) 719 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 720 721 return 0; 722 } 723 724 static int nfp_net_get_rxnfc(struct net_device *netdev, 725 struct ethtool_rxnfc *cmd, u32 *rule_locs) 726 { 727 struct nfp_net *nn = netdev_priv(netdev); 728 729 switch (cmd->cmd) { 730 case ETHTOOL_GRXRINGS: 731 cmd->data = nn->dp.num_rx_rings; 732 return 0; 733 case ETHTOOL_GRXFH: 734 return nfp_net_get_rss_hash_opts(nn, cmd); 735 default: 736 return -EOPNOTSUPP; 737 } 738 } 739 740 static int nfp_net_set_rss_hash_opt(struct nfp_net *nn, 741 struct ethtool_rxnfc *nfc) 742 { 743 u32 new_rss_cfg = nn->rss_cfg; 744 u32 nfp_rss_flag; 745 int err; 746 747 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 748 return -EOPNOTSUPP; 749 750 /* RSS only supports IP SA/DA and L4 src/dst ports */ 751 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 752 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 753 return -EINVAL; 754 755 /* We need at least the IP SA/DA fields for hashing */ 756 if (!(nfc->data & RXH_IP_SRC) || 757 !(nfc->data & RXH_IP_DST)) 758 return -EINVAL; 759 760 nfp_rss_flag = ethtool_flow_to_nfp_flag(nfc->flow_type); 761 if (!nfp_rss_flag) 762 return -EINVAL; 763 764 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 765 case 0: 766 new_rss_cfg &= ~nfp_rss_flag; 767 break; 768 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 769 new_rss_cfg |= nfp_rss_flag; 770 break; 771 default: 772 return -EINVAL; 773 } 774 775 new_rss_cfg |= FIELD_PREP(NFP_NET_CFG_RSS_HFUNC, nn->rss_hfunc); 776 new_rss_cfg |= NFP_NET_CFG_RSS_MASK; 777 778 if (new_rss_cfg == nn->rss_cfg) 779 return 0; 780 781 writel(new_rss_cfg, nn->dp.ctrl_bar + NFP_NET_CFG_RSS_CTRL); 782 err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS); 783 if (err) 784 return err; 785 786 nn->rss_cfg = new_rss_cfg; 787 788 nn_dbg(nn, "Changed RSS config to 0x%x\n", nn->rss_cfg); 789 return 0; 790 } 791 792 static int nfp_net_set_rxnfc(struct net_device *netdev, 793 struct ethtool_rxnfc *cmd) 794 { 795 struct nfp_net *nn = netdev_priv(netdev); 796 797 switch (cmd->cmd) { 798 case ETHTOOL_SRXFH: 799 return nfp_net_set_rss_hash_opt(nn, cmd); 800 default: 801 return -EOPNOTSUPP; 802 } 803 } 804 805 static u32 nfp_net_get_rxfh_indir_size(struct net_device *netdev) 806 { 807 struct nfp_net *nn = netdev_priv(netdev); 808 809 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 810 return 0; 811 812 return ARRAY_SIZE(nn->rss_itbl); 813 } 814 815 static u32 nfp_net_get_rxfh_key_size(struct net_device *netdev) 816 { 817 struct nfp_net *nn = netdev_priv(netdev); 818 819 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 820 return -EOPNOTSUPP; 821 822 return nfp_net_rss_key_sz(nn); 823 } 824 825 static int nfp_net_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 826 u8 *hfunc) 827 { 828 struct nfp_net *nn = netdev_priv(netdev); 829 int i; 830 831 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 832 return -EOPNOTSUPP; 833 834 if (indir) 835 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++) 836 indir[i] = nn->rss_itbl[i]; 837 if (key) 838 memcpy(key, nn->rss_key, nfp_net_rss_key_sz(nn)); 839 if (hfunc) { 840 *hfunc = nn->rss_hfunc; 841 if (*hfunc >= 1 << ETH_RSS_HASH_FUNCS_COUNT) 842 *hfunc = ETH_RSS_HASH_UNKNOWN; 843 } 844 845 return 0; 846 } 847 848 static int nfp_net_set_rxfh(struct net_device *netdev, 849 const u32 *indir, const u8 *key, 850 const u8 hfunc) 851 { 852 struct nfp_net *nn = netdev_priv(netdev); 853 int i; 854 855 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY) || 856 !(hfunc == ETH_RSS_HASH_NO_CHANGE || hfunc == nn->rss_hfunc)) 857 return -EOPNOTSUPP; 858 859 if (!key && !indir) 860 return 0; 861 862 if (key) { 863 memcpy(nn->rss_key, key, nfp_net_rss_key_sz(nn)); 864 nfp_net_rss_write_key(nn); 865 } 866 if (indir) { 867 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++) 868 nn->rss_itbl[i] = indir[i]; 869 870 nfp_net_rss_write_itbl(nn); 871 } 872 873 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS); 874 } 875 876 /* Dump BAR registers 877 */ 878 static int nfp_net_get_regs_len(struct net_device *netdev) 879 { 880 return NFP_NET_CFG_BAR_SZ; 881 } 882 883 static void nfp_net_get_regs(struct net_device *netdev, 884 struct ethtool_regs *regs, void *p) 885 { 886 struct nfp_net *nn = netdev_priv(netdev); 887 u32 *regs_buf = p; 888 int i; 889 890 regs->version = nn_readl(nn, NFP_NET_CFG_VERSION); 891 892 for (i = 0; i < NFP_NET_CFG_BAR_SZ / sizeof(u32); i++) 893 regs_buf[i] = readl(nn->dp.ctrl_bar + (i * sizeof(u32))); 894 } 895 896 static int nfp_net_get_coalesce(struct net_device *netdev, 897 struct ethtool_coalesce *ec) 898 { 899 struct nfp_net *nn = netdev_priv(netdev); 900 901 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD)) 902 return -EINVAL; 903 904 ec->rx_coalesce_usecs = nn->rx_coalesce_usecs; 905 ec->rx_max_coalesced_frames = nn->rx_coalesce_max_frames; 906 ec->tx_coalesce_usecs = nn->tx_coalesce_usecs; 907 ec->tx_max_coalesced_frames = nn->tx_coalesce_max_frames; 908 909 return 0; 910 } 911 912 /* Other debug dumps 913 */ 914 static int 915 nfp_dump_nsp_diag(struct nfp_app *app, struct ethtool_dump *dump, void *buffer) 916 { 917 struct nfp_resource *res; 918 int ret; 919 920 if (!app) 921 return -EOPNOTSUPP; 922 923 dump->version = 1; 924 dump->flag = NFP_DUMP_NSP_DIAG; 925 926 res = nfp_resource_acquire(app->cpp, NFP_RESOURCE_NSP_DIAG); 927 if (IS_ERR(res)) 928 return PTR_ERR(res); 929 930 if (buffer) { 931 if (dump->len != nfp_resource_size(res)) { 932 ret = -EINVAL; 933 goto exit_release; 934 } 935 936 ret = nfp_cpp_read(app->cpp, nfp_resource_cpp_id(res), 937 nfp_resource_address(res), 938 buffer, dump->len); 939 if (ret != dump->len) 940 ret = ret < 0 ? ret : -EIO; 941 else 942 ret = 0; 943 } else { 944 dump->len = nfp_resource_size(res); 945 ret = 0; 946 } 947 exit_release: 948 nfp_resource_release(res); 949 950 return ret; 951 } 952 953 static int nfp_app_set_dump(struct net_device *netdev, struct ethtool_dump *val) 954 { 955 struct nfp_app *app = nfp_app_from_netdev(netdev); 956 957 if (!app) 958 return -EOPNOTSUPP; 959 960 if (val->flag != NFP_DUMP_NSP_DIAG) 961 return -EINVAL; 962 963 return 0; 964 } 965 966 static int 967 nfp_app_get_dump_flag(struct net_device *netdev, struct ethtool_dump *dump) 968 { 969 return nfp_dump_nsp_diag(nfp_app_from_netdev(netdev), dump, NULL); 970 } 971 972 static int 973 nfp_app_get_dump_data(struct net_device *netdev, struct ethtool_dump *dump, 974 void *buffer) 975 { 976 return nfp_dump_nsp_diag(nfp_app_from_netdev(netdev), dump, buffer); 977 } 978 979 static int nfp_net_set_coalesce(struct net_device *netdev, 980 struct ethtool_coalesce *ec) 981 { 982 struct nfp_net *nn = netdev_priv(netdev); 983 unsigned int factor; 984 985 if (ec->rx_coalesce_usecs_irq || 986 ec->rx_max_coalesced_frames_irq || 987 ec->tx_coalesce_usecs_irq || 988 ec->tx_max_coalesced_frames_irq || 989 ec->stats_block_coalesce_usecs || 990 ec->use_adaptive_rx_coalesce || 991 ec->use_adaptive_tx_coalesce || 992 ec->pkt_rate_low || 993 ec->rx_coalesce_usecs_low || 994 ec->rx_max_coalesced_frames_low || 995 ec->tx_coalesce_usecs_low || 996 ec->tx_max_coalesced_frames_low || 997 ec->pkt_rate_high || 998 ec->rx_coalesce_usecs_high || 999 ec->rx_max_coalesced_frames_high || 1000 ec->tx_coalesce_usecs_high || 1001 ec->tx_max_coalesced_frames_high || 1002 ec->rate_sample_interval) 1003 return -EOPNOTSUPP; 1004 1005 /* Compute factor used to convert coalesce '_usecs' parameters to 1006 * ME timestamp ticks. There are 16 ME clock cycles for each timestamp 1007 * count. 1008 */ 1009 factor = nn->me_freq_mhz / 16; 1010 1011 /* Each pair of (usecs, max_frames) fields specifies that interrupts 1012 * should be coalesced until 1013 * (usecs > 0 && time_since_first_completion >= usecs) || 1014 * (max_frames > 0 && completed_frames >= max_frames) 1015 * 1016 * It is illegal to set both usecs and max_frames to zero as this would 1017 * cause interrupts to never be generated. To disable coalescing, set 1018 * usecs = 0 and max_frames = 1. 1019 * 1020 * Some implementations ignore the value of max_frames and use the 1021 * condition time_since_first_completion >= usecs 1022 */ 1023 1024 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD)) 1025 return -EINVAL; 1026 1027 /* ensure valid configuration */ 1028 if (!ec->rx_coalesce_usecs && !ec->rx_max_coalesced_frames) 1029 return -EINVAL; 1030 1031 if (!ec->tx_coalesce_usecs && !ec->tx_max_coalesced_frames) 1032 return -EINVAL; 1033 1034 if (ec->rx_coalesce_usecs * factor >= ((1 << 16) - 1)) 1035 return -EINVAL; 1036 1037 if (ec->tx_coalesce_usecs * factor >= ((1 << 16) - 1)) 1038 return -EINVAL; 1039 1040 if (ec->rx_max_coalesced_frames >= ((1 << 16) - 1)) 1041 return -EINVAL; 1042 1043 if (ec->tx_max_coalesced_frames >= ((1 << 16) - 1)) 1044 return -EINVAL; 1045 1046 /* configuration is valid */ 1047 nn->rx_coalesce_usecs = ec->rx_coalesce_usecs; 1048 nn->rx_coalesce_max_frames = ec->rx_max_coalesced_frames; 1049 nn->tx_coalesce_usecs = ec->tx_coalesce_usecs; 1050 nn->tx_coalesce_max_frames = ec->tx_max_coalesced_frames; 1051 1052 /* write configuration to device */ 1053 nfp_net_coalesce_write_cfg(nn); 1054 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_IRQMOD); 1055 } 1056 1057 static void nfp_net_get_channels(struct net_device *netdev, 1058 struct ethtool_channels *channel) 1059 { 1060 struct nfp_net *nn = netdev_priv(netdev); 1061 unsigned int num_tx_rings; 1062 1063 num_tx_rings = nn->dp.num_tx_rings; 1064 if (nn->dp.xdp_prog) 1065 num_tx_rings -= nn->dp.num_rx_rings; 1066 1067 channel->max_rx = min(nn->max_rx_rings, nn->max_r_vecs); 1068 channel->max_tx = min(nn->max_tx_rings, nn->max_r_vecs); 1069 channel->max_combined = min(channel->max_rx, channel->max_tx); 1070 channel->max_other = NFP_NET_NON_Q_VECTORS; 1071 channel->combined_count = min(nn->dp.num_rx_rings, num_tx_rings); 1072 channel->rx_count = nn->dp.num_rx_rings - channel->combined_count; 1073 channel->tx_count = num_tx_rings - channel->combined_count; 1074 channel->other_count = NFP_NET_NON_Q_VECTORS; 1075 } 1076 1077 static int nfp_net_set_num_rings(struct nfp_net *nn, unsigned int total_rx, 1078 unsigned int total_tx) 1079 { 1080 struct nfp_net_dp *dp; 1081 1082 dp = nfp_net_clone_dp(nn); 1083 if (!dp) 1084 return -ENOMEM; 1085 1086 dp->num_rx_rings = total_rx; 1087 dp->num_tx_rings = total_tx; 1088 /* nfp_net_check_config() will catch num_tx_rings > nn->max_tx_rings */ 1089 if (dp->xdp_prog) 1090 dp->num_tx_rings += total_rx; 1091 1092 return nfp_net_ring_reconfig(nn, dp, NULL); 1093 } 1094 1095 static int nfp_net_set_channels(struct net_device *netdev, 1096 struct ethtool_channels *channel) 1097 { 1098 struct nfp_net *nn = netdev_priv(netdev); 1099 unsigned int total_rx, total_tx; 1100 1101 /* Reject unsupported */ 1102 if (!channel->combined_count || 1103 channel->other_count != NFP_NET_NON_Q_VECTORS || 1104 (channel->rx_count && channel->tx_count)) 1105 return -EINVAL; 1106 1107 total_rx = channel->combined_count + channel->rx_count; 1108 total_tx = channel->combined_count + channel->tx_count; 1109 1110 if (total_rx > min(nn->max_rx_rings, nn->max_r_vecs) || 1111 total_tx > min(nn->max_tx_rings, nn->max_r_vecs)) 1112 return -EINVAL; 1113 1114 return nfp_net_set_num_rings(nn, total_rx, total_tx); 1115 } 1116 1117 static const struct ethtool_ops nfp_net_ethtool_ops = { 1118 .get_drvinfo = nfp_net_get_drvinfo, 1119 .get_link = ethtool_op_get_link, 1120 .get_ringparam = nfp_net_get_ringparam, 1121 .set_ringparam = nfp_net_set_ringparam, 1122 .get_strings = nfp_net_get_strings, 1123 .get_ethtool_stats = nfp_net_get_stats, 1124 .get_sset_count = nfp_net_get_sset_count, 1125 .get_rxnfc = nfp_net_get_rxnfc, 1126 .set_rxnfc = nfp_net_set_rxnfc, 1127 .get_rxfh_indir_size = nfp_net_get_rxfh_indir_size, 1128 .get_rxfh_key_size = nfp_net_get_rxfh_key_size, 1129 .get_rxfh = nfp_net_get_rxfh, 1130 .set_rxfh = nfp_net_set_rxfh, 1131 .get_regs_len = nfp_net_get_regs_len, 1132 .get_regs = nfp_net_get_regs, 1133 .set_dump = nfp_app_set_dump, 1134 .get_dump_flag = nfp_app_get_dump_flag, 1135 .get_dump_data = nfp_app_get_dump_data, 1136 .get_coalesce = nfp_net_get_coalesce, 1137 .set_coalesce = nfp_net_set_coalesce, 1138 .get_channels = nfp_net_get_channels, 1139 .set_channels = nfp_net_set_channels, 1140 .get_link_ksettings = nfp_net_get_link_ksettings, 1141 .set_link_ksettings = nfp_net_set_link_ksettings, 1142 }; 1143 1144 const struct ethtool_ops nfp_port_ethtool_ops = { 1145 .get_drvinfo = nfp_app_get_drvinfo, 1146 .get_link = ethtool_op_get_link, 1147 .get_strings = nfp_port_get_strings, 1148 .get_ethtool_stats = nfp_port_get_stats, 1149 .get_sset_count = nfp_port_get_sset_count, 1150 .set_dump = nfp_app_set_dump, 1151 .get_dump_flag = nfp_app_get_dump_flag, 1152 .get_dump_data = nfp_app_get_dump_data, 1153 }; 1154 1155 void nfp_net_set_ethtool_ops(struct net_device *netdev) 1156 { 1157 netdev->ethtool_ops = &nfp_net_ethtool_ops; 1158 } 1159